Products

WHB-896 Voltage Transformer Monitoring Device

WHB-896 Voltage Transformer Monitoring Device

WGB-896A is an advanced voltage transformer monitoring device featuring automatic paralleling, undervoltage and overvoltage protection, earth-fault protection, and line-break detection. It’s designed for 35kV single bus systems and can be installed directly in high voltage switch cabinets or combined panels.

Application

WGB-896A voltage transformer monitoring device is a voltage transformer monitoring device with perfect and advanced functions, it can realize VT automatic paralleling and switching function, undervoltage protection, overvoltage protection, earth-fault protection and VT line-break detection function, mainly apply to the section connection mode of single bus of 35kV voltage class and under. It can be directly installed in the high voltage switch cabinet or combined panel.

Product features

  • All components of series of device adopt the military or industrial goods with high stability and high reliability, which can stable operation in harsh industrial environments;
  • Integrated chassis design, highly convenient for maintenance; Perfect self-checking function for hardware and software and free adjustment circuit design make it simpler to debug;
  • The hardware design of the device adopts many kinds of isolating and shielding measures, the software design adopts digital filtering techniques, advanced protection algorithm and other anti-interference measure, These design schemes improve the performance on anti-interference greatly;
  • Using SoC solution, strongly data processing, logic operation and information storage capacity, fast running speed, highly reliability;
  • Flexible and powerful communication function: supports both RS485 serial communication mode and Ethernet communication mode; Communication protocols support DL/T667-1999 (IEC-60870-5-103), the Modbus protocol, can achieve communication with other manufacturers’ automation system flexibly;
  • Flexible support network timing, GPS pulse timing, B-code timing, to ensure that the device has a unified and accurate clock;
  • Provided with perfect remote-communicating function, the SOE resolution of the station can achieve 2 ms;
  • Provided with perfect events protection treatment, can store latest 100 incident report records and 100 action report records, can record 5 fault waves continuously, each wave recorded can records 10 frequency waveforms of current and voltage;
  • Provided with friendly man-machine interface, full Chinese menu mode, clear structure, easy to use.

Function Configuration

Function Classification No. Function name
Protection functions 1 Undervoltage protection
2 Overvoltage protection
3 Overload protection
4 VT automatic paralleling
5 Voltage transformer line-break detection
Measure and Control Function 1 Remote signaling binary input acquisition, device remote signaling change, alarm remote signaling
2 Analog telemetering acquisition